Cloth-roll support



Nov. '13, 1928. 1,691,145

. C. P. BERGSTROM ET AL CLOTH ROLL SUPPORT Filed Dec. 21, 1927 2Sheets-Sheet 1 M c TOE A. /%/6 Nov. 13, 1928.

C. P. BERGSTROM ET AL CLOTH ROLL SUPPORT Illlllllllll .r I

2 Sheets-Sheet 2 Filed Dec. 21,. 1927 which it may be Patented Nov. 13,1928.

UNITE DSTA D vroronA. FOISY, or wonensrnn, massacnosn'rrs, as-

& K'NcwLEs LOOM wonns, or

MASSACHUSETTS.

CLOTH-ROLL surronr.

Application filed necemberlzl, 1927. Serial at. 241,667.

Thisinvention relates to a loom for weaving cloth and pa devices for,supporting a cloth roll therein.

it is desirable to lower the In such looms, cloth roll after restore theative position. g

It is the general to provide from time roll to its raised andoperimproved rticularly to improved to time and to thereobject of ourinvention devices by which the cloth roll may be lowered manually and bythereafter restored toraised and operative position.

A further object .is to provide means by which the roll may beconveniently raised with a step-bystep Our invention further relates toarrangev movement.

ll'lGIlllS and combinations of. parts which will be hereinafterdescribed and more particularly pointed outin the appended claims.

A preterrediorm of the invention is shown in the drawings in which,

Fig. 1 is a front elevation 0t our improved cloth roll supportingmechanism;

Fig. 2 is a side elevation with certain parts inflsection, takensubstantially along the line 22 in Fig Fig. 3 is a view showing theparts in a Fig. A is a detail section. looking in t l in Fig. 2;

Fig. 5 is a along the. line 5-5 Fig. 6 is a detail sectional plan View,

line '66 in Fig. 1. drawings, including a frame 10. a

along the Referring to the parts o'i a loom breast beam 11, a cloth roll13. The

similar to Fig. 2, but dilterent POSIUOTL;

side elevatloir partly in he direction of the arrow detail sectionalelevation taken in Fig. 2; and

taken we have shown take-up roll '12, and a roll 13 is supported inbearings 1e (Fig. 6) which are offset from the upper ends of cloth rollsupporting bars 16, slid-able in recesses or guide-ways 17 in thetake-up stand 17 The supporting bars their lower ends mounted in' thesecured to a rock bearings 21 (Fig.

1). 19 is provided with a lateral projection on studs 18 (Fig. 1)forming a treadle or rest on which the weaver may place his downwardpressure roll when desired. 23 (Fig. 2) are co to depress the clothHeavy coiled springs nnected to hooks 24: on

and holds the cloth rollin,

treadle portion 22,

16. are pivoted at s- -'front ends of. arms 19, shaft rotatable in fixedThe left hand arm toot and exert.

on the-take-up stand 17 provides a guiding and supporting surface toresist the rearwardthrust of the rack bar under the operatii'igconditionsto be described.

A hand lever (Fig. 2) is mounted on a fixed stud 3'1 and hasgan oli'setprojection 32 slotted-at 33 to receive a stop pin 34 by which angularDlOVGllTlGIllJ of the lever is limited in both directions... A secondstop pin 35, isalso provided in the take-up stand 1T a purpose to bedescribed. .A holdii'ig pawl 40, also pivoted on the stud 31. isnormally held against a flat plate 41 on the handle 80 by a coil spring42.

\Wrerithe handle isswungi orward to the position shown in Fig. 2, theholding pawl engages the teeth of the rackbar 25 lowered positionagainst the tension of the springs 23.,

A release pawl 15 is pivoted on a stud d6 in a, lug L7 projectinglaterally from the lower end of the lever 30. .Thepawl L5 has anupwardly extending cam portion 48 which Is held 111 engagement withthestop pin 35 by a co l sprmg a9 on the stud 46.

.. Having described the construction'ot our improved mechanism, theoperation thereof is as follows Then it is desiredto' depress the cloth7 WORCESTER, MASSAGHU- I The rack bar is provided with teeth roll 13,the weaver places his foot upon the and the suporting bars 16 againstthe tension of the springs 28. The 'lever30 normally occupies theposition shown in Fig. 2, so that the holding pawl e0 will engage theteeth 26 and hold the'supporting bars in depressed position. Y

VVhe'n it is desired to restore the cloth roll to raised positioin thelever 30 is rocked back and iorthfon its stud 81 a sufiicient number oftimes topermit the roll to rise until engaged by the take-up roll 12.Each time the handle .is rocked from the position shown in Fig. 2 tothat shown in Fig. 3, the release pawl will engage one of the teeth inthe rack bar andwill depress depressing the arms 19 sufiiciently torelease the holding pawl 40, which is immediately snapped outward by itsspring 42 until it engages the plate 4L1 as shown in Fig. 3. I

As the handle is then rocked forward, the

holding pawl will be .moved rearward and will engage the next lowertooth on the rack bar while the release pawl Wlll be disengaged.

from the rack as its cam projection 48 slides upward past the stopfpinto the-position shown in Fig. 2.

viding a step by The cloth roll is thus permitted to rise by the spaceof one tooth. The operation may be repeated as manytimes as necessaryuntil otherwise than as set forth in the claims,-

but what we claim is o l. In-a loom, cloth roll supporting mechanismcomprising a pair of vertically slidable supporting bars, said barsbeing simultaneously 'manually depressible, means to hold said barsdepressed, and means to accomplish a yielding upward step by stepmovement of said bars to operative raised position.

2. In a loom, cloth roll supporting mechanism comprising a pair ofvertically, slidable supporting bars, said bars being simultaneouslymanually depressible, means prostep release of said sup? porting bars,said bars upward as released;

3; In a loom. cloth roll su a ortino mecha by a step-by-step motion andmotion 1S entlrely under the conthus be quickly and and yielding meansto raise.

nism comprising a pairof vertically slidable supporting bars, sald barsbeing simultaneously manually depressible, means to move said barsyieldingl upward, and a manually operated step by step releasingmechanism for said supporting bars. a 4C. In a loom, cloth rollsupporting mechanism comprising a pair or" vertically slidablesupporting bars, said bars being simultaneously manually depressible,means to move said bars yieldingly upward, and means to limit suchupward movementto astep by step movement which is at all times underdirect manual control. I

' 5. In a loom, cloth roll supporting'mechanism comprisinga pair ofvertically slidable supporting bars, said bars being simultaneouslymanually depressible, a holding pawl and a release pawl, eachsuccessively engaging teeth on one of said supporting'bars andsuccessively releasing said teeth, and yield ing means to raise saidbars step by step when released. '6. In a loom, cloth roll supportingmechanism comprising a pair of vertically slidable supporting bars, saidbars being simultaneously manually depressible, a holding pawl and arelease pawl for one of said bars, a handle etlective to operatesaidrelease pawl and to thereby cause said holding pawl to engage andrelease successive teeth on said supporting bar, and yieldingmeans toraise said bars when released.

7. In a loom, cloth roll supporting mechanism comprising a pair ofvertically slidable supporting bars,

ously manually depressibl'e, a lever mounted on a'fixed stud, a holdingpawl mounted on V afixed stud, a release pawl mounted on said lever andhaving a projection engaging a fixedstop, and yieldlng means, to movesaid supporting bars upward and to cause the lteeth thereof tosuccessively engage said pawls. v v In testimony whereof we havehereunto ailixed our signatures. 5

CAR-L P. BERGSTROM.

VICTOR A. FOISY.

said bars being simultane

